Welder's safety helmet

Details Welder's safety helmet Welder's safety helmet

1990-10-17

1992-08-25

Schroeder, Werner H.

Apparel

Guard or protector

For wearer's head

A61F 906

Patent

active

051407078

ABSTRACT:
A welder's safety helmet has a face portion (11) and an observation aperture (16). The face portion (11) supports a lens assembly (20). The lens assembly (20) includes a shroud (21) and a first lens frame (22) having a first lens (31) mounted therein. The shroud (21) substantially surrounds the observation aperture (16). The first lens frame (22) is operable between an open and a closed position via a hinge mechanism (23). In the closed position, a spacer member (40) contacts the shroud (21) and thus effectively blocks all light from being transmitted to the wearer's field of view, other than the desirable transmission through first lens (31).

REFERENCES:
patent: 2017059 (1935-10-01), Gingg
patent: 2105071 (1938-01-01), Bowers
patent: 2251194 (1941-07-01), Malcom
patent: 2384765 (1945-09-01), O'Reilly
patent: 2411224 (1946-11-01), O'Reilly
patent: 2590526 (1952-03-01), Evans
patent: 2719972 (1955-10-01), Kelly
patent: 3251065 (1966-05-01), Caldwell
patent: 3257667 (1966-06-01), Anderson
patent: 4109132 (1978-08-01), Butoi
patent: 4193132 (1980-03-01), Peterson
patent: 4706301 (1987-11-01), Page
patent: 4875235 (1989-10-01), Kuhlman

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